When it comes to tuning cars, practices aimed at increasing torque and, consequently, engine power, whether fuelled by diesel or gasoline, are often discussed in a very general manner without specifying the main aspects to consider. In this article, we will try to shed light on the most important aspects (or at least the main ones) that can be addressed to enhance the performance of an automotive engine.
In the '90s, there were a series of innovations regarding diesel injection systems. We transitioned from purely mechanical rotary injection pumps to electronically controlled rotary injection pumps (similarly for less common inline pumps). Then came radial piston injection pumps with a complex electronic control system based on CAN, PDE injection systems (pump-injector elements), and towards the end of that decade, common rail systems became wide
The OBD-II port was originally designed for vehicle diagnostics, providing a standardized interface. This port allows the diagnosis of various control systems, including those related to the engine and emissions. The CAN is the communication protocol enabling digital devices, such as the ECU (Engine Control Unit), the instrument cluster, and other components, to exchange data on a "DATA BUS."
The most widely used fuels for internal combustion engines, gasoline and diesel, distinguish themselves by their unique chemical composition, which profoundly influences the operation and performance of the engines that use them. Let's first explore how they differ chemically.
Today we're talking about how to increase the power and torque of Audi A6s, both Diesel and turbo gasoline models. To do so, however, we decided to start with a bit of history, beginning a few years ago...actually, a few decades ago now!